package com.demo.coretech.collection;

import java.util.*;

/**
 * @Authors：gaoyang
 * @CreateTime：2021/12/1 19:47
 * @Description：todo
 */
public class CollectionTest {

    public static void main(String[] args) {
        List list = new ArrayList();
        list.add("a");
        list.add("b");
        list.add("b");
        list.add("b");
        list.add("c");
        list.toArray();
        System.out.println(list.toString());
    }
}
